<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Untitled Page</title>
</head>
<body>

<center><h1>How To Calculate Half Life</h1></center>

<center>
<table border="0">
<tr>
<td><img src="http://www.elec-intro.com/EX/05-13-21/calculating.jpg" width="400 height="200" /></td>
<td><p>


The number of half-lifes is the LOGbase2(original amount of carbon 14 / current amount of carbon 14)</br>
To determine the current age, we multiply the number of half-lives by the half-life of the isotope we are</br>
trying to find the age of.  The half-life of carbon-14 is 5730 +- 40 years.




</p></td>
</tr>
</table>
</center>

</body>
</html>
